Home / 20,727.80-31,096.14-6,688.62

Finding the Fourth Proportional to 20,727.80, 31,096.14 and 6,688.62

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Solution

The fourth proportional to 20,727.80, 31,096.14 and 6,688.62 is: 10,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.80 : 31,096.14 = 6,688.62 : x
  2. Step 2: Convert to fraction form
    20,727.80/31,096.14 = 6,688.62/x
  3. Step 3: Cross multiply
    20,727.80x = 31,096.14 × 6,688.62
  4. Step 4: Simplify right side
    20,727.80x = 207,990,238.84
  5. Step 5: Solve for x
    x = 207,990,238.84/20,727.80
  6. Step 6: Final answer
    x = 10,034.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.